NPPES file of Aug 9, 2026

Alexander Peretz Lock, D.O.

Internal Medicine Physician · Woodmere, NY

Alexander Peretz Lock, D.O. is an internal medicine physician with a practice address in Woodmere, New York, and NPI 1841459567, issued on Jun 6, 2008. Check the license (New York 253628, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841459567
Name
Alexander Peretz Lock
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
253628 NY
Self-reported in NPPES; status is on the state search
Practice location
334 Derby Ave, Woodmere, NY 11598
Phone
(718) 207-9920
Enumerated
Jun 6, 2008
Record last updated
Dec 18, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110708000309); accepts Medicare assignment
Medical or professional school
New York College Of Osteo Medicine Of New York Institute Of Technology, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Alexander Peretz Lock in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 253628
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.1 times the Medicare Part D claims of the average internal medicine physician in 2024

6,776 Medicare Part D claims for 243 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 32 claims were for opioids.

  1. Alexander Lock6,776
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate341 claims
  2. Pantoprazole Sodium314 claims
  3. Atorvastatin Calcium262 claims
  4. Eliquis258 claims
  5. Furosemide250 claims
  6. Sertraline Hcl219 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $60.70

2 payments; by number, the most common kind was food and beverage; the largest payer was Csl Behring. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alexander Lock$60.70
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Boro Park Operating CO LLCBrooklyn, NY
  2. Maimonides Faculty Practice PlanBrooklyn, NY
  3. Maimonides Medical Center Maimonides Primary Care FppBrooklyn, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alexander Peretz Lock among 12,067 internal medicine physician records in New York

Alexander Peretz Lock, D.O. is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 40% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2008 · median 2002 among the 7,221 with a school on file
  • Record last updated2018 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 internal medicine physician records list a practice address in Woodmere

They are 9 of the 698 NPPES records with a practice address in Woodmere, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Steven Greenstein, MDWoodmere, NY 115981619046380
  2. Ralph Iorio, M.DWoodmere, NY 115981013043595
  3. Sidney Jakubovics, M.D.Woodmere, NY 115981891031944
  4. Kosmita KarkiWoodmere, NY 115981568392561
  5. Michael Levine, MDWoodmere, NY 115981942375126
  6. Tong Li, MDWoodmere, NY 115981669564886
  7. Taiwo Ogundipe, MDWoodmere, NY 115981518701689
  8. Aviva Tobin-HessWoodmere, NY 115981598297376

Common questions

What is Alexander Peretz Lock, D.O.'s NPI number?

Alexander Peretz Lock, D.O.'s National Provider Identifier (NPI) is 1841459567, issued on Jun 6, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Peretz Lock, D.O. located?

The NPPES record lists a practice address at 334 Derby Ave, Woodmere, NY, 11598. Phone: (718) 207-9920. Providers update this record themselves, so call before visiting.

How can I verify Alexander Peretz Lock, D.O.'s license?

NPPES lists New York license number 253628, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alexander Peretz Lock, D.O. prescribe under Medicare Part D?

In 2024, Alexander Peretz Lock, D.O. had 6,776 Medicare Part D claims for 243 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Alexander Peretz Lock, D.O.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.